- Brown the beef (optional): 
- In a skillet over medium heat, cook ground beef until browned. Drain excess fat and transfer to the slow cooker. 
- Add the base: 
- Into the slow cooker, add beef broth, milk, tomato paste, paprika, garlic powder, onion powder, salt, and pepper. Stir to combine. 
- Cook low and slow: 
- Cover and cook on LOW for 3 hours. 
- Add pasta: 
- Stir in uncooked pasta. Cover again and cook for 30–40 minutes, until pasta is tender. Stir once halfway through if possible. 
- Add cheese: 
- Turn off heat. Stir in shredded cheddar cheese (and cream cheese if using). Let sit for 5–10 minutes to thicken. 
- Serve: 
- Taste and adjust seasoning if needed. Serve hot and garnish with parsley if desired.